The ability to run a forum or all forums by reputation would be really handy.

Making reputation and the leaderboard something that doesn't feel like an afterthought.

It also would allow users to curate what they did and didn't like which in turn give new users a better overall experience.

Imagine it like reddit where you can up/downvote posts. Similar to what has been done with the question and answer forum type except with a focus on reputation that can be seen in the topic list.

I've seen mods for the functionality for older versions of IPS but nothing for 4.

Sorry to bump this, but this would be a great idea! I've been wanting something like this for a while.